Today | Weather | Wednesday, March 18, 2026

Weather in Eugene, Oregon

02:00 AM
Now
Rainy Night
46° F
Feels Like 43°
Precipitation 45 %
Wind 7 mph
Humidity 91 %
Today
Cloudy Weather
Day 75°
Night 41°
Precipitation 1 %
Wind 7 mph
UV Index (0 - 11+) 4

Eugene Weather Forecast Updated

12 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (March 18, 2025)
Partly Sunny with Showers

Day

54°

Night

36°

Wind

7 mph

UV Index

3

Precipitation

65 %

Air Quality in Eugene

NOW
10 AQI
Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 2.37 µg/m³
PM10 3.28 µg/m³
O3 0.009 ppm
NO2 1.9 ppb
SO2 0 ppb
CO 0.12 ppm
NH3 1.19 µg/m³
NO 0.03 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.52.37 µg/m³
PM103.28 µg/m³
O317.13 µg/m³
NO23.58 µg/m³
SO20.08 µg/m³
CO140.75 µg/m³
NH31.19 µg/m³
NO0.03 µg/m³